> I have reason to believe that both the drive, and the OS are correct.
> I have suspicion that the HBA simply handled the creation of this
> volume somehow differently than how it handled the original. Don't
> know the answer for sure yet.
Ok, that's confirmed now. Apparently when the drives sh
On Apr 4, 2010, at 8:11 PM, Edward Ned Harvey wrote:
>>> There is some question about performance. Is there any additional
>> overhead caused by using a slice instead of the whole physical device?
>>
>> No.
>>
>> If the disk is only used for ZFS, then it is ok to enable volatile disk
>> write ca
I haven't taken that approach, but I guess I'll give it a try.
From: Tim Cook [mailto:t...@cook.ms]
Sent: Sunday, April 04, 2010 11:00 PM
To: Edward Ned Harvey
Cc: Richard Elling; zfs-discuss@opensolaris.org
Subject: Re: [zfs-discuss] To slice, or not to slice
On Sun, A
> > There is some question about performance. Is there any additional
> overhead caused by using a slice instead of the whole physical device?
>
> No.
>
> If the disk is only used for ZFS, then it is ok to enable volatile disk
> write caching
> if the disk also supports write cache flush request
On Sun, Apr 4, 2010 at 9:46 PM, Edward Ned Harvey wrote:
> > CR 6844090, zfs should be able to mirror to a smaller disk
> > http://bugs.opensolaris.org/bugdatabase/view_bug.do?bug_id=6844090
> > b117, June 2009
>
> Awesome. Now if someone would only port that to solaris, I'd be a happy
> man. ;
> CR 6844090, zfs should be able to mirror to a smaller disk
> http://bugs.opensolaris.org/bugdatabase/view_bug.do?bug_id=6844090
> b117, June 2009
Awesome. Now if someone would only port that to solaris, I'd be a happy
man. ;-)
___
zfs-discuss maili
> Your experience is exactly why I suggested ZFS start doing some "right
> sizing" if you will. Chop off a bit from the end of any disk so that
> we're guaranteed to be able to replace drives from different
> manufacturers. The excuse being "no reason to, Sun drives are always
> of identical size
On Apr 3, 2010, at 8:00 PM, Tim Cook wrote:
> On Sat, Apr 3, 2010 at 9:52 PM, Richard Elling
> wrote:
> On Apr 3, 2010, at 5:56 PM, Tim Cook wrote:
> >
> > On Sat, Apr 3, 2010 at 7:50 PM, Tim Cook wrote:
> >> Your experience is exactly why I suggested ZFS start doing some "right
> >> sizing" if
On Sat, Apr 3, 2010 at 9:52 PM, Richard Elling wrote:
> On Apr 3, 2010, at 5:56 PM, Tim Cook wrote:
> >
> > On Sat, Apr 3, 2010 at 7:50 PM, Tim Cook wrote:
> >> Your experience is exactly why I suggested ZFS start doing some "right
> sizing" if you will. Chop off a bit from the end of any disk s
On Apr 2, 2010, at 2:05 PM, Edward Ned Harvey wrote:
> Momentarily, I will begin scouring the omniscient interweb for information,
> but I’d like to know a little bit of what people would say here. The
> question is to slice, or not to slice, disks before using them in a zpool.
>
> One reason
On Apr 3, 2010, at 5:56 PM, Tim Cook wrote:
>
> On Sat, Apr 3, 2010 at 7:50 PM, Tim Cook wrote:
>> Your experience is exactly why I suggested ZFS start doing some "right
>> sizing" if you will. Chop off a bit from the end of any disk so that we're
>> guaranteed to be able to replace drives fro
On Sat, Apr 3, 2010 at 7:50 PM, Tim Cook wrote:
>
>
> On Sat, Apr 3, 2010 at 6:53 PM, Robert Milkowski wrote:
>
>> On 03/04/2010 19:24, Tim Cook wrote:
>>
>>
>>
>> On Fri, Apr 2, 2010 at 4:05 PM, Edward Ned Harvey <
>> guacam...@nedharvey.com> wrote:
>>
>>> Momentarily, I will begin scouring t
On Sat, Apr 3, 2010 at 6:53 PM, Robert Milkowski wrote:
> On 03/04/2010 19:24, Tim Cook wrote:
>
>
>
> On Fri, Apr 2, 2010 at 4:05 PM, Edward Ned Harvey > wrote:
>
>> Momentarily, I will begin scouring the omniscient interweb for
>> information, but I’d like to know a little bit of what peopl
On 03/04/2010 19:24, Tim Cook wrote:
On Fri, Apr 2, 2010 at 4:05 PM, Edward Ned Harvey
mailto:guacam...@nedharvey.com>> wrote:
Momentarily, I will begin scouring the omniscient interweb for
information, but I’d like to know a little bit of what people
would say here. The questio
On Fri, Apr 2, 2010 at 4:05 PM, Edward Ned Harvey
wrote:
> Momentarily, I will begin scouring the omniscient interweb for
> information, but I’d like to know a little bit of what people would say
> here. The question is to slice, or not to slice, disks before using them in
> a zpool.
>
>
>
> One
On Sat, 3 Apr 2010, Edward Ned Harvey wrote:
I would return the drive to get a bigger one before doing something as
drastic as that. There might have been a hichup in the production line,
and that's not your fault.
Yeah, but I already have 2 of the replacement disks, both doing the same
thing.
> I would return the drive to get a bigger one before doing something as
> drastic as that. There might have been a hichup in the production line,
> and that's not your fault.
Yeah, but I already have 2 of the replacement disks, both doing the same
thing. One has a firmware newer than my old disk
> On Apr 2, 2010, at 2:29 PM, Edward Ned Harvey wrote:
> > I've also heard that the risk for unexpected failure of your pool is
> higher if/when you reach 100% capacity. I've heard that you should
> always create a small ZFS filesystem within a pool, and give it some
> reserved space, along with t
> Oh, I managed to find a really good answer to this question. Several
> sources all say to do precisely the same procedure, and when I did it
> on a
> test system, it worked perfectly. Simple and easy to repeat. So I
> think
> this is the gospel method to create the slices, if you're going to
>
>> And finally, if anyone has experience doing this, and process
>> recommendations? That is
My next task is to go read documentation
>> again, to refresh my memory from years ago, about the difference
>> between format, partition, label, fdisk, because those terms
>> dont have the same
- "Edward Ned Harvey" skrev:
> > What build were you running? The should have been addressed by
> > CR6844090
> > that went into build 117.
>
> I'm running solaris, but that's irrelevant. The storagetek array
> controller
> itself reports the new disk as infinitesimally smaller than the one
> > One reason to slice comes from recent personal experience. One disk
> of
> > a mirror dies. Replaced under contract with an identical disk. Same
> > model number, same firmware. Yet when it's plugged into the system,
> > for an unknown reason, it appears 0.001 Gb smaller than the old disk,
> >
Momentarily, I will begin scouring the omniscient interweb for information, but
I'd like to know a little bit of what people would say here. The question is
to slice, or not to slice, disks before using them in a zpool.
One reason to slice comes from recent personal experience. One disk of a
On Apr 2, 2010, at 2:29 PM, Edward Ned Harvey wrote:
> I’ve also heard that the risk for unexpected failure of your pool is higher
> if/when you reach 100% capacity. I’ve heard that you should always create a
> small ZFS filesystem within a pool, and give it some reserved space, along
> with th
On Fri, Apr 2, 2010 at 2:29 PM, Edward Ned Harvey wrote:
> I’ve also heard that the risk for unexpected failure of your pool is
> higher if/when you reach 100% capacity. I’ve heard that you should always
> create a small ZFS filesystem within a pool, and give it some reserved
> space, along with
On Fri, Apr 2, 2010 at 2:23 PM, Edward Ned Harvey
wrote:
> There is some question about performance. Is there any additional
> overhead caused by using a slice instead of the whole physical device?
>
zfs will disable the write cache when it's not working with whole disks,
which may reduce perfo
On 04/ 3/10 10:23 AM, Edward Ned Harvey wrote:
Momentarily, I will begin scouring the omniscient interweb for
information, but I’d like to know a little bit of what people would
say here. The question is to slice, or not to slice, disks before
using them in a zpool.
Not.
One reason to sl
rg
Subject: [zfs-discuss] To slice, or not to slice
Momentarily, I will begin scouring the omniscient interweb for information,
but I'd like to know a little bit of what people would say here. The
question is to slice, or not to slice, disks before using them in a zpool.
One reason to s
Momentarily, I will begin scouring the omniscient interweb for information,
but I'd like to know a little bit of what people would say here. The
question is to slice, or not to slice, disks before using them in a zpool.
One reason to slice comes from recent personal experience. One disk of a
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